I read in school that prey have eyes on the sides of the head (sheep, cows, etc) to spot predators coming whereas predators have eyes on the front. Is this rule not applicable to marine biology?
In: Biology
Like with people, land predators generally get the best view of something they want to eat when looking directly at it. So for this reason both eyes generally focus in front.
Herbivores generally need to see all around themselves so their eyes are on the side of their heads letting them see behind and in front to a degree.
Sharks and other water creatures all have their eyes on the side because they need a more 360 degree field of view.
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